Brane vector dynamics from embedding geometry

T. E. Clark, S. T. Love, Muneto Nitta, T. ter Veldhuis, Chi Xiong

研究成果: Article査読

9 被引用数 (Scopus)

抄録

A Kaluza-Klein decomposition of higher dimensional gravity is performed in the flexible brane world scenario and the properties of the extra vectors resulting from this decomposition are explored. These vectors become massive due to a gravitational Higgs mechanism in which the brane oscillation Nambu-Goldstone bosons become the longitudinal component of the vector fields. The vector mass is found to be proportional to the exponential of the vacuum expectation value of the radion (dilaton) field and as such its magnitude is model dependent. Using the structure of the embedding geometry, the couplings of these vectors to the Standard Model, including those resulting from the extrinsic curvature, are deduced. As an example, we show that for 5D space-time the geometry of the bulk-brane world, either intrinsic or extrinsic, only depends on the extra vector and the 4D graviton. The connection between the embedding geometry and coset construction by non-linear realization is also presented.

本文言語English
ページ(範囲)97-114
ページ数18
ジャーナルNuclear Physics B
810
1-2
DOI
出版ステータスPublished - 2009 3 21

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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